Strange text added when pasting formated text from Writer to Calc

OS: Windows 11
Version: 7.5.3.2 (x86_64)
Build: 9f56dff12ba03b9acd7730a5a481eea045e468f3
No customization. No add-ons. Only default everything.

I have a list of names with embedded links that I got from an email. I paste it on Writer to replace the commas with line breaks. When I tried to copy and paste all text from Writer it to a new Calc spreadsheet, the first line was something like this:

docs-internal-guid-183e8701-7fff-ba08-7409-d8ccf62c2921docs-internal-guid-183e8701-7fff-ba08-7409-d8ccf62c2921Name Name

It was supposed to be only “Name Name”. When I try to delete the unwanted part of the text, all of it is removed. Why this happens? What could I do to not have this behavior enable?

Thanks for the help.

guid means globally unique identifier. So I’m guessing this line just points to the data source that contains the names (something like view > field names in writer if you have fields included from a database file).

Probably difficult to tell though without an example file.